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node-red/public/red/ui/palette.js

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/**
* Copyright 2013 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
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RED.palette = (function() {
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var exclusion = ['config','unknown','deprecated'];
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var core = ['input', 'output', 'function', 'subflows', 'social', 'storage', 'analysis', 'advanced'];
function createCategoryContainer(category){
var escapedCategory = category.replace(" ","_");
$("#palette-container").append('<div class="palette-category">'+
'<div id="header-'+category+'" class="palette-header"><i class="expanded fa fa-caret-down"></i><span>'+category.replace("_"," ")+'</span></div>'+
'<div class="palette-content" id="palette-base-category-'+category+'">'+
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'<div id="palette-'+category+'-input"></div>'+
'<div id="palette-'+category+'-output"></div>'+
'<div id="palette-'+category+'-function"></div>'+
'</div>'+
'</div>');
$("#header-"+category).on('click', function(e) {
$(this).next().slideToggle();
$(this).children("i").toggleClass("expanded");
});
}
core.forEach(createCategoryContainer);
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function setLabel(type, el,label) {
var nodeWidth = 80;
var nodeHeight = 25;
var lineHeight = 20;
var portHeight = 10;
var words = label.split(" ");
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var displayLines = [];
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var currentLine = words[0];
var currentLineWidth = RED.view.calculateTextWidth(currentLine, "palette_label", 0);
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for (var i=1;i<words.length;i++) {
var newWidth = RED.view.calculateTextWidth(currentLine+" "+words[i], "palette_label", 0);
if (newWidth < nodeWidth) {
currentLine += " "+words[i];
currentLineWidth = newWidth;
} else {
displayLines.push(currentLine);
currentLine = words[i];
currentLineWidth = RED.view.calculateTextWidth(currentLine, "palette_label", 0);
}
}
displayLines.push(currentLine);
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var lines = displayLines.join("<br/>");
var multiLineNodeHeight = 8+(lineHeight*displayLines.length);
el.css({height:multiLineNodeHeight+"px"});
var labelElement = el.find(".palette_label");
labelElement.html(lines);
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el.find(".palette_port").css({top:(multiLineNodeHeight/2-5)+"px"});
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var popOverContent;
try {
var l = "<p><b>"+label+"</b></p>";
if (label != type) {
l = "<p><b>"+label+"</b><br/><i>"+type+"</i></p>";
}
popOverContent = $(l+($("script[data-help-name|='"+type+"']").html()||"<p>no information available</p>").trim())
.filter(function(n) {
return this.nodeType == 1 || (this.nodeType == 3 && this.textContent.trim().length > 0)
}).slice(0,2);
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} catch(err) {
// Malformed HTML may cause errors. TODO: need to understand what can break
console.log("Error generating pop-over label for '"+type+"'.");
console.log(err.toString());
popOverContent = "<p><b>"+label+"</b></p><p>no information available</p>";
}
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el.data('popover').options.content = popOverContent;
}
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function escapeNodeType(nt) {
return nt.replace(" ","_").replace(".","_").replace(":","_");
}
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function addNodeType(nt,def) {
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var nodeTypeId = escapeNodeType(nt);
if ($("#palette_node_"+nodeTypeId).length) {
return;
}
if (exclusion.indexOf(def.category)===-1) {
var category = def.category.replace(" ","_");
var rootCategory = category.split("-")[0];
var d = document.createElement("div");
d.id = "palette_node_"+nodeTypeId;
d.type = nt;
var label;
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if (typeof def.paletteLabel === "undefined") {
label = /^(.*?)([ -]in|[ -]out)?$/.exec(nt)[1];
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} else {
label = (typeof def.paletteLabel === "function" ? def.paletteLabel.call(def) : def.paletteLabel)||"";
}
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d.innerHTML = '<div class="palette_label"></div>';
d.className="palette_node";
if (def.icon) {
d.style.backgroundImage = "url(icons/"+def.icon+")";
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d.style.backgroundSize = "18px 27px";
if (def.align == "right") {
d.style.backgroundPosition = "95% 50%";
} else if (def.inputs > 0) {
d.style.backgroundPosition = "10% 50%";
}
}
d.style.backgroundColor = def.color;
if (def.outputs > 0) {
var portOut = document.createElement("div");
portOut.className = "palette_port palette_port_output";
d.appendChild(portOut);
}
if (def.inputs > 0) {
var portIn = document.createElement("div");
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portIn.className = "palette_port palette_port_input";
d.appendChild(portIn);
}
if ($("#palette-base-category-"+rootCategory).length === 0) {
createCategoryContainer(rootCategory);
}
if ($("#palette-"+category).length === 0) {
$("#palette-base-category-"+rootCategory).append('<div id="palette-'+category+'"></div>');
}
$("#palette-"+category).append(d);
d.onmousedown = function(e) { e.preventDefault(); };
$(d).popover({
title:d.type,
placement:"right",
trigger: "hover",
delay: { show: 750, hide: 50 },
html: true,
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container:'body'
});
$(d).click(function() {
var help = '<div class="node-help">'+($("script[data-help-name|='"+d.type+"']").html()||"")+"</div>";
$("#tab-info").html(help);
});
$(d).draggable({
helper: 'clone',
appendTo: 'body',
revert: true,
revertDuration: 50
});
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setLabel(nt,$(d),label);
}
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}
function removeNodeType(nt) {
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var nodeTypeId = escapeNodeType(nt);
$("#palette_node_"+nodeTypeId).remove();
}
function hideNodeType(nt) {
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var nodeTypeId = escapeNodeType(nt);
$("#palette_node_"+nodeTypeId).hide();
}
function showNodeType(nt) {
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var nodeTypeId = escapeNodeType(nt);
$("#palette_node_"+nodeTypeId).show();
}
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function refreshNodeTypes() {
RED.nodes.eachSubflow(function(sf) {
var paletteNode = $("#palette_node_subflow_"+sf.id.replace(".","_"));
var portInput = paletteNode.find(".palette_port_input");
var portOutput = paletteNode.find(".palette_port_output");
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if (portInput.length === 0 && sf.in.length > 0) {
var portIn = document.createElement("div");
portIn.className = "palette_port palette_port_input";
paletteNode.append(portIn);
} else if (portInput.length !== 0 && sf.in.length === 0) {
portInput.remove();
}
if (portOutput.length === 0 && sf.out.length > 0) {
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var portOut = document.createElement("div");
portOut.className = "palette_port palette_port_output";
paletteNode.append(portOut);
} else if (portOutput.length !== 0 && sf.out.length === 0) {
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portOutput.remove();
}
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setLabel(sf.type+":"+sf.id,paletteNode,sf.name);
});
}
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function filterChange() {
var val = $("#palette-search-input").val();
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if (val === "") {
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$("#palette-search-clear").hide();
} else {
$("#palette-search-clear").show();
}
var re = new RegExp(val,'i');
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$(".palette_node").each(function(i,el) {
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if (val === "" || re.test(el.id)) {
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$(this).show();
} else {
$(this).hide();
}
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});
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}
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$("#palette-search-input").focus(function(e) {
RED.keyboard.disable();
});
$("#palette-search-input").blur(function(e) {
RED.keyboard.enable();
});
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$("#palette-search-clear").on("click",function(e) {
e.preventDefault();
$("#palette-search-input").val("");
filterChange();
$("#palette-search-input").focus();
});
$("#palette-search-input").val("");
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$("#palette-search-input").on("keyup",function() {
filterChange();
});
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$("#palette-search-input").on("focus",function() {
$("body").one("mousedown",function() {
$("#palette-search-input").blur();
});
});
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return {
add:addNodeType,
remove:removeNodeType,
hide:hideNodeType,
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show:showNodeType,
refresh:refreshNodeTypes
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};
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})();